Results of high-resolution, long time integrations of the shallow water equations in spherical geometry are presented. Final quasi-steady states of the freely decaying evolution are found, characterized by the emergence of robust equatorial jets and by the breaking of cyclone-anticyclone symmetry. It is shown that these two phenomena are intimately related and that global prevalence of anticyclonic vorticity necessarily leads to the formation of a westward (retrograde) equatorial jet. © 1999 American Institute of Physics.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
Iacono, R., Struglia, M. V., & Ronchi, C. (1999). Spontaneous formation of equatorial jets in freely decaying shallow water turbulence. Physics of Fluids, 11(5), 1272 - 1274. https://doi.org/10.1063/1.869898